Encapsulated Transformer
Product Overview & Application
Encapsulated (Potted) Transformers (also referred to as Epoxy Resin Encapsulated) are designed for applications where the environmental conditions would not permit a general purpose ventilated dry type transformer. The entire transformer core & coil is encased in a silica sand / polyurethane mixture which protects the windings from any airborne contaminants and moisture.
Typical areas of use include:
- Corrosive Environments: Petro-Chemical, steel, pulp and paper industries
- Damp conditions: Mines, pump-houses underground or rooftop service areas
- Industrial applications: processes with high degree of airborne dust or conductive particles
Features & Benefits
- Mixture of silica sand resin forming a solid mass completely encloses and protects the core and coil, also significantly reduces audible noise.
- Windings utilize Class 220°C Insulating rated for 150°C Rise, but designed to operate at 115°C maximum.
- The transformer's core is solidly grounded.
- Enclosure constructed from heavy gauge steel, coated with ASA#61 grey powder paint
- Suitable for NEMA/CSA Type 3R and Type 4 Enclosure applications for both indoor and outdoor
- Spacious wiring compartment, cool and easily accessible (bottom or front access may depend on size)
Product Specification
Capacity | 3 to 125 kVA Single Phase and 5 to 150 kVA Three Phase |
Voltage Class | 600V |
Cooling | Self Cooled (ANC) |
Frequency | 60Hz (50/60Hz Optional) |
Conductors | Copper (Cu) or Aluminum (Al) Windings |
Insulation System | 200°C (130°C rise) (Optional 115°C & 80°C Rise Available) |
Impregnation | N/A (Core & Coil Are Encapsulated In a Block of Polyeurethane and Silica Sand) |
Primary Taps | Typically +/-2 x 2.5% Raps (Refer To Dry Type Distribution Transformer Catalog) |
Sound Level | Meets NEMA ST-20 |
Enclosure Type | Type 3R Indoor/Outdoor (Refer to Catalog) |
Enclosure Finish | ANSI/ASA 61 Grey |
Warranty | 12 Months (See Warranty and Limitations) |
Quality System | ISO 9001:2015 Quality Management System |
Certifications |
|
Reference Standards |
|
Optional Features & Accessories |
|